Quick-action bench-vise.



P. BROADBOOKS.

QUICK ACTION BENCH VISE:

APPLICATION FILED JULY 5. I918.

Patented Oct. 15, 1918.

PETER BROADBOOKS, OF BATAVIA, NEW YORK.

QUICK-ACTION BENCH-VISE.

Specification of Letters Patent.

Patented Got. 15;, 1918.

Applicationfiled July 5,1918. SerialNo. 243,375.

To all whom it may concern:

Be it known that I, PETER BRoAn ooKs, a citizen of the United States,residing at Batavia, in the county of vGrenesee andState of New York,have invented certain new and useful Improvements in Quick-ActionBench-Vises; and I hereby declare that the following is a full, clear,and exact description thereof, referencebeing had to the accompanyingdrawings, which form part of this specification.

This invention relates to so-called quickaction bench Vises, in whichthe movable jaw may be quickly adjusted relatively tothe fixed j awuntil they are separated to an eX tent approximately equal to thethickness or width of the object to be gripped thereby, and then themovable jaw may be screw-adjusted to positively engage andclamp suchobject. Such vises usually have a fixed or stationary jaw attached tothe bench or support for the vise; a bar slidably engaging said fixedjaw, and a so-called movable jaw attached to the slidable bar.

One object of my present invention is to provide the sliding bar of sucha vise with a channel or slideway engaged by a relatively fixed clutchmember which is preferably adjustably connected with the fined jaw. Thisenables the sliding bar, with the front or movable jaw thereon, to bemoved quickly back or forth relatively to the fixed jaw in clamping andunclamping work; and when said movable jaw is unclamped from the work itmay be readily slid, with the bar, to and from the fixed jawthe lengthofthe slideway in the bar, without manipulating the screw.

Another object of the present inventionis to provide novel and simplemeans for clutching the sliding bar and holding it securely againstlongitudinal play after it is adjusted and the movable jaw is beingclamped on thework by the screw.

Another object is to provide the movable jaw with a bearing platerecessed so that the collarofthe screw can engage and turn whollywithinthe recess, and the frontjjaw bear its full length u onthe bar.

Further objects of the invention are to mp yfy th con u ti nand ac h aethe adjustment of the parts.

In the accompanying drawings I have illustrated Vises embodying theinvention and will explain same with reference thereto 7 and summarizethe essential features of the invention and novel details ofconstruction for which protection is desired in the. claims.

In said drawings:

Figure l i a side elevation of a vise made in accordance withmyimprovements, showing the vise closedin full lines and opened indotted lines.

Fig. 2 is a longitudinal vertical section through Fig. l

Fig. 3 is a vertical section on line 3+3, Fig. l. i

e e s tai e iena i Qf h lidinghbar and clutch member engaged therewltFig 5 is a tom vie o he c tch member shown in Figs. 1-4.

Fig. .6 is a transverse section on the line Fig. 7 is a detail innerview face of the e Plate- Fig. 8 isa side view of a slightly modifiedform of the vise.

Fig. 9 is a vertical section on the line 9+9, Fig. 8.

Fig. 10 is a detail view of the adjustable with or rigidly attached to abase 1, which can be fastened in any suitable manner to thesupport, orbench, upon which the vise is to be mounted.

The shank 1 has a longitudinal slot l extendingthrough it which slot ispreferably rectangular in cross-section, and the upper part of thisslotfcorresponds in width to the thickness of the slidable bar 3 whichextends through the slot 1". as shown inthe drawings.

At the bottom of the slot 1?, and preferably adjacent the front endthereof, is an anvil block or bearing 2 which forms a fulcrum or supportfor the bar 3; said fulcrum block may be of any suitable kind and formedwith the shank or base, or separate, and attached thereto. As shown in'Fi-g. 1 this fulcrum block 2 is preferably composed of a hard metalplate secured by a screw 2 to the base 1. When the fulcrum block is madeseparate and attached to the jaw, it

can be made of steel and tempered.

said fulcrum block can be made adjustable vertically, in any suitableway, so that it can be raised and the sliding bar adjusted therepyinstead of by adjusting the clutch memer. V

The sliding bar 3 extends through the opening 1 and may be of anydesired length according to the maximum width of objects which the viseis intended to grip. Said bar 3 preferably has a slot or channel 3 inits lower side forming a slideway extending from its rear end toward thefront thereof. Preferably this slideway is approximately T-shaped ordovetailed in cross-section, as shown in Fig. 1, so that the innerportion of the slideway is wider than the lower portion thereof, and theslideway is thus adapted to engage and retain the enlarged head of aclutch member 4:. r

As shown the clutch member A has an enlarged or flanged head 4 whichlies within the enlarged upper portion of the slideway 3, and the underside of this head engages the underlying portions or lips 3 at theopposite sides of the narrow portion of the slideway as shown in Fig. 3.Said head A is connected to a narrow neck portion A"? whichextendsthrough the lower contracted! part of body 4 of the clutch memberthat is prefer-l ably adjustably secured to the base 1 of the! rear jaw1 within the opening 1 and below; the slide bar.

The slideway and clutch member may be of any desired relative forms orshapes, and the clutch member may be attached to the jaw in any desiredmanner; or set in the mold and made integral with the base during thecasting thereof. TnFigs. 15 the body 4 is threaded and engages athreaded socket in the base 1* and it may be adjusted vertically byinserting a square ended wrench key into the squared socket 4 in thelower end of the body.

The shape of 'the clutch head A may be varied as desired, the objectbeing that such head will engage the underside of the slideway in thebar 3 when the latter is fulcrumed on the plate 2, and the jaw 5 issupported on the outer end of the bar 3; and when an object is grippedbetween thejaws.

The front 5 is complemental to the aw 1 and has its shank 5 formed witha slot 5 for engagement with the front end of the sliding bar 3, onwhich jaw 5 is slidably mounted. The movement of the jaw 5 on andrelative to the bar 3 may be limited by a stop pin 3 fast to the slidingbar 3 and engaging slots 5 in the sides of the shank 5 of the jaw.

The jaw 5 may be forcibly adjusted on slide bar 3 by any suitable means.As shown in the outer end of the sliding bar 3 is formed a screwthreaded socket 3 into which The V the slot 3 and is connected with the!is tapped a screw 6, which screw has a collar 6 formed or fastenedthereon adjacent the outer end of the sliding bar 3 and said collar isrotatably confined to the shank of jaw 5 by suitable means; preferablyby a wear plate 7 fastened to the outer end of the shank 5, said wearplate has a recess 7 in its inner face to receive collar 6* which isconcealed therein.

Screw 6 has an operating'head 6 engaging the outer side ofwear plate 7and said bolt may have any suitable means such as the usual handle 6, bywhich it can be turned to forcibly adjust the jaw 5 on the bar 3. Byturning said screw 6 the jaw 5 will be slidably adjusted longitudinallyof and on bar 3.

The collar 6 is wholly concealed within the recess 7 in the wear-plate7, and said wear-plate provides a larger bearing for the screw-headagainst the sliding jaw 5.

In Figs. 8 to 10 I show a slightly modified form of the vise. As shownin Fig. 8 the fulcrum block 2 is formed on a plate 2 which is fastenedto the base 1 by a screw 2* within the opening in aw 1. I

The sliding bar 3, in this case, is shown as formedwith an open slidewayor slot 3 the lower surface of which bears against a clutch member 8when the vise'is in upright position and in use. Said clutch member 8 isshown as a bolt or pin that extends transversely through the shank ofthe jaw 1 and through the slideway 3, and bears upon the lower surfaceof said slideway, whereby the sliding bar will be adj ustably held whilethe jaws of the'vise are in their regular upright position.

The adjustable clutch member 8 may be made eccentric as shown in Fig.10, so that by slightly turning said member in either direction it willslightly raise or lower the front end of the sliding bar 3, and thusenable any wear that may come upon the sliding bar while in use to becompensated for; the member '8 can be fastened after adjustment bytightening nut 8, in ase the clutch member 8 couldbe made plain insteadof eccentric.

In such case'the clutch member 8 could also be made with a flat surfaceto bear against the bottom of the slide-way, and thus increase thebearing surface.

As shown in Figs. 13 the clutch member is arranged perpendicularlywithin the hannelor slideway of the bar 3 instead of extendingtransversely through the slideway as in Figs. 89; but the action of thefulcrum back and clutch member on the bar 3 in either vise ispractically the same.

I at present prefer the construction shown in Figs. 17 as the slidingbar has no open channel wherein filing chips or other fragments couldenter therein and obstruct the free movement of the bar; and the visepresents a neat symmetrical appearance, being pc f ctypla ni ndsmqc ho ts d A 5 he pe pen ic la 'rlutch mem e ha a m e Positiv :griP With thechan of th b r a -the transve se l t h- Clfhese novel \VISQS possesspractical advantages over the usualstandard pattern bench Vises, onaccount of their more positive quick actionthe narrow unbreakable steelsliding bar; the strong and easy support andadjustment-of the sliding.jaw on the bar; and the general simplicity of construction.

that I, claim is: j I

1. Ina vise, a fixed jaw having an opening an d a fulcrum block at thelower side of said opening; a sliding bar adapted ,to slide through saidop ening and besupported upon said fulcrum block, said sliding barhavinga slideway cut therein; a clutch mem ber engaging, said slidewaywhereby the slidingbar will be securely .held on said fulcrum block whenthe jaws of the vise are in their normal upright position; and a movablelflwe-slidably attached to said bar.

2. Ina vise, a stationary jaw having an opening and a fulcrum blockadjacent the lowersideof said opening, a sliding bar extending throughsaid opening and having a slideway outtherein; saidibarresting upon saidfulcrum block; a clutch member engaging said slideway and connected tosaid aw; said clutch member holding the sliding bar on the fulcrumblock; a movable jaw fitted to slide upon the front end of said slidingbar, and a screw threaded into the sliding bar, for adjusting themovable jaw thereon, and a stop pivot to limit and guide the movement ofsaid movable jaw on said bar.

3. In a vise, a stationary jaw having an opening, va fulcrum blockadjacent the front and lower side of said opening, a sliding barextending through said opening and having a slideway formed therein; aclutch member engaging said slideway and connected to said jaw; amovable jaw fitted to slide upon the front end of said sliding bar, ascrew threaded into the sliding bar, a recessed wear plate attached tothe movable jaw and a collar attached to the screw adapted to revolve insaid recess, substantially as described.

4. In a vise, a fixed jaw having an opening, a fulcrum block adjacentthe front and lower side of said opening; a plain surfaced rectangularbar adapted to slide through said opening and be supported upon saidfulcrum block, said bar having a slideway out therein; a movable jawattached to said bar; a clutch member connected to the V jaw andengaging said slideway and bearing upon the lower surface of saidslideway whereby the sliding bar will be securely held on said fulcrumblock when the jaws of the vise are in their normal upright position.

5. In a vise, a stationary jaw formed with an opening, a fulcrum blockat the lower side of sa d op n a sl d ng a d pt d to slide withintheopening of said jaw and be supported upon said fulcrum block andhaving a slideway milled therein; a movable j aw attached to saidsliding bar, and a clutch member engaged with said slideway so that theclutch will be in contact with the lower surface of said slideway whenthe jaws of the vise are in upright'position and hold the sliding barsecurely on said fulcrum block.

6. In a vise of the character described, a stationary jaw formed with anopening, a fulcrum block at the lower side and front end of saidopening; a plain surfaced rectangular sliding bar adapted to slidewithin the opening of said jaw and be supported upon said fulcrum blockand having a slideway milled therein; a movable jaw slidably attached tosaid bar, and a clutch member adjustably connected with said fined'j awand engaged with the lower surface o'fvsaid slldeway when the jaws ofthe vise are in upright position, said clutch member hold ng said slidinbar securely on said fulcrum block;

7. Iii a vise of the character described, a fixed jaw having an opening,a fulcrum block within the opening of said jaw,-a plain surfacedrectangular bar slidably supported upon said fulcrum block, a movablejaw slidably mounted upon said bar; a screw connected with said bar tooperate said movable jaw, a stop to regulate the adjustment of saidmovable jaw on said bar, a recessed wear plate attached to the movablejaw, a collar on said screw engaging the recess in the wear plate toprovide the full length bearing of said jaw upon the sliding bar, and aclutch member to hold said bar in contact with the fulcrum block whenthe vise is in use and the jaws are in upright position.

8. In a vise of the character described, a stationary jaw having anopening and a fulcrum block within the opening; a plain surfacedrectangular sliding bar engaging said opening and having a slideway, aflanged clutch member engaging said slideway and adjustably attached tosaid jaw so that the flanges of the clutch member bear upon the lowerwalls of the slideway, whereby the sliding bar will be locked andadjustably anchored and held in operation upon said fulcrum block whenin its normal position; a sliding jaw fitted upon the outer end of thesliding bar, and means for adjusting said sliding bar.

9. In a vise of the character described, a stationary jaw having afulcrum block attached thereto, a sliding bar having a slideway outtherein, a clutch member running through said slideway and pivotallyconnected to said jaw, a movable jaw fitted to slide upon the front endof said sliding bar which rests upon said fulcrum block, a screwthreaded into the sliding bar, a recessed wear plate for the screwattached to said movable jaw, a collar attached to the screw adapted ofsaid movable jaw.

10. In a vise of the character described, a stationary jaw formed with afulcrum block, a plain surfaced rectangular sliding bar adapted to heslid within the opening of said jaw and be operated upon said fulcrumblock, said sliding bar having a slideway milled therein; a clutchmember attached to the stationary jaw and adjustably engaged with saidslideway of the bar within the opening of said stationary jaw so thatthe clutch member will be in contact with the lower surface of saidslideway when the jaws of the vise are in an upright position, and holdthe sliding bar securely on said fulcrum block. 7 v

11. In a vise of the character described, a rear jaw having an opening,a plain surfaced rectangular bar slidably held upon a fulcrum blockwithin the opening in the rear jaw; a front jaw slidably held upon saidbar, a' screw to operate said front jaw, a stop to regulate the movingcapacity of'said jaw, a recessed wear plate attached to the front jaw, acollar entering the recess in the wear plate to provide the full lengthbearing of said jaw upon the sliding bar, a screw carrying said collarand engaging said bar, and a clutch member to hold-said bar in contactupon the fulcrum block when the vise is in use and the jaws are in anupright position.

12. In a vise of the character described, a 0

chored and held inoperation upon said fulcrum block when in its normalposition; and a sliding jaw fitted upon the outer end of the slidingbar, as and for the purpose set forth. In testimony that I claim theforegoing as my own, I aflix my signature.

PETER BROADBOOKS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Iatents,

' Washington, D. G.

